The prison island of Alcatraz is one of the country's most complicated, terrifying and mysterious landmarks. "The Rock" was the notorious spot where the government put "the worst of the worst" prisoners, infamous criminals such as Machine Gun Kelly and Al Capone. Although it was closed in 1963, the island still holds the public's imagination, becoming the destination site for thousands of tourists and the setting for feature films (The Rock, Escape from Alcatraz) and television series (Alcatraz). RETURN TO ALCATRAZ is a wide-ranging documentary that traces the roots of the "Battle of Alcatraz" in 1946 - when the military was called in to crush a prison riot - as well as portraits of those who served time there. The program reveals the compelling story of convicted atomic spy Morton Sobell; the true, frightening tale of Robert Stroud - the "Birdman of Alcatraz"; and the real-life account of the 1962 "Escape from Alcatraz."